CN112985823A - Testing device for simulating camera sensor - Google Patents

Testing device for simulating camera sensor Download PDF

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Publication number
CN112985823A
CN112985823A CN202110226644.2A CN202110226644A CN112985823A CN 112985823 A CN112985823 A CN 112985823A CN 202110226644 A CN202110226644 A CN 202110226644A CN 112985823 A CN112985823 A CN 112985823A
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video
test
testing
module
tested
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CN112985823B (en
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孙博苗
付玉堂
李智华
路津池
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Inbo Supercomputing Nanjing Technology Co Ltd
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Inbo Supercomputing Nanjing Technology Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00Testing of vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18Safety devices; Monitoring
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing, e.g. low power processors, power management or thermal management

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

The invention discloses a testing device for simulating a camera sensor, which has the technical scheme that the testing device comprises a testing terminal, wherein the testing terminal comprises a storage module, a main control module, a video data conversion module and an equipment connection module; the storage module is provided with a plurality of storage libraries, and a plurality of test videos are stored in the storage libraries; the video data conversion module is used for converting the format of the test video into a data format consistent with the format output by the camera, and the equipment connection module is used for connecting with a plurality of pieces of equipment to be tested and sending the test video after format conversion to the corresponding equipment to be tested; the main control module obtains the type of each device to be tested connected with the device connecting module, obtains a video from a corresponding database according to the type of the device to be tested, and sends the video to the video data conversion module. The testing device can be used for testing a plurality of devices to be tested simultaneously, a camera is not needed in the testing process, the testing device is simplified, and the testing cost is reduced.

Description

Testing device for simulating camera sensor
Technical Field
The invention relates to the technical field of automatic driving, in particular to a testing device for a simulation camera sensor.
Background
With the development of the automatic driving technology, the camera is more and more widely used on the automobile, and more vehicles are matched with the functions of 360-degree look-around, fatigue driving and the like. However, a reliable solution for the simulation test of this part of functions is lacking, and especially, the related test of the camera video is rare and rare.
When performing 360 around view testing, the prior art generally uses a real camera for testing or directly performs actual drive testing. When adopting real camera to test, use four large screen display test videos, the camera is direct to screen data acquisition, and the camera is connected with the equipment that awaits measuring to carry out relevant functional test to the equipment that awaits measuring, when adopting this kind of mode to test, need use real camera, and when testing a plurality of equipment that awaits measuring, every equipment that awaits measuring all needs the camera, and consequently the equipment that needs is many, inconvenient transportation, and the test cost is high. The camera is also needed for directly carrying out actual drive test, the test efficiency is low, and the test cost is higher.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the test device for simulating the camera sensor, which can be used for carrying out camera video related test on equipment to be tested, can simultaneously test a plurality of pieces of equipment to be tested, does not need to use a camera in the test process, simplifies the test equipment and reduces the test cost.
In order to achieve the purpose, the invention provides the following technical scheme: a testing device for simulating a camera sensor comprises a testing terminal, wherein the testing terminal comprises a storage module, a main control module, a video data conversion module and an equipment connection module;
the storage module is provided with a plurality of storage libraries, a plurality of test videos are stored in the storage libraries, and the test videos in different storage libraries are used for testing different types of devices to be tested;
the video data conversion module is used for converting the format of the test video into a data format consistent with the format output by the camera, and the equipment connection module is used for connecting with a plurality of pieces of equipment to be tested and sending the test video after format conversion to the corresponding equipment to be tested;
the main control module obtains the type of each device to be tested connected with the device connecting module, and obtains videos in the corresponding database according to the type of the device to be tested and sends the videos to the video data conversion module.
As a further improvement of the present invention, the main control module is configured with a comparison detection strategy, where the comparison detection strategy includes that when the main control module obtains multiple devices to be tested of the same type, the device connection module is controlled to simultaneously send the same test video to each device to be tested of the same type.
As a further improvement of the invention, the test video comprises an actual drive test video and a simulated composite video, the actual drive test video is obtained from an actual drive test scene, and the simulated composite video is obtained by algorithm simulated synthesis.
As a further improvement of the present invention, the storage libraries each include a drive test library and a synthesis library, the actual drive test videos are stored in the drive test libraries, the analog synthesis videos are stored in the synthesis library, and the main control module obtains, for each device to be tested, a preset number of test videos from the corresponding drive test library and the corresponding synthesis library, and sends the test videos to the video data conversion module.
As a further improvement of the present invention, the testing apparatus includes a cloud server, the cloud server is in communication connection with the testing terminal, a video update library is configured in the cloud server, the video update library is used for storing and importing new testing videos, and the storage module acquires the imported new testing videos in the video update library in real time and downloads and stores the imported new testing videos into the storage libraries.
As a further improvement of the present invention, a video update strategy is arranged in the storage module, and the video update strategy includes a data acquisition step, a data processing and comparing step, an edge video deleting step and a downloading and updating step;
the data acquisition step comprises the steps of acquiring the size of each test video in the current storage module and the size of a new test video to be downloaded, and entering a data processing comparison step;
the data processing and comparing step comprises the steps of comparing the total size of each test video and the new test video to be downloaded with the preset storage space size of the storage module, and entering an edge video deleting step when the total size is larger than the preset storage space size; when the total size is larger than the preset storage space size, entering a downloading and updating step;
the method comprises the steps that the edge video deleting step comprises the steps of selecting a test video with the download time interval between the download time of the test video in a storage module and the current moment exceeding a preset protection time interval, obtaining the sending time of the test video which is sent to a video data conversion module last time, calculating the sending time interval from the sending time to the current moment, if the test video is not sent, setting the sending time interval of the test video to be infinite, sequencing the test videos according to the sending time interval, deleting from the test video with the largest sending time interval until the total size of the rest test videos and the new test video to be downloaded is smaller than the preset storage space size of the storage module, and entering the downloading and updating step;
and the downloading and updating step comprises the step of downloading the new test video to be downloaded from the cloud server to the corresponding storage library of the storage terminal.
As a further improvement of the present invention, when deleting the test video, if the total number of all the test videos in the roadside base or the synthesis base where the test video to be deleted is located is less than a preset basic number threshold, the test video to be deleted is not deleted.
As a further development of the invention, the transmission number corresponds to the basic number threshold.
The invention has the beneficial effects that: through the video data conversion module, the test device can directly convert the video to be tested into the data format consistent with the output format of the camera, and the data format is directly input into the equipment to be tested, so that the camera is not needed by the test device, the test equipment is simplified, and the test cost is reduced. The equipment connecting module can be connected with a plurality of pieces of equipment to be tested, so that the testing device can test the plurality of pieces of equipment to be tested simultaneously, and the testing efficiency is high. The main control module can send different test videos according to different types of the equipment to be tested, so that the test is more effective and intelligent, the test device can test different equipment to be tested simultaneously, and the applicability is high.
Drawings
FIG. 1 is a schematic diagram of the framework of the present invention;
fig. 2 is a flow chart of a video update strategy.
Reference numerals: 1. testing the terminal; 11. a storage module; 12. a main control module; 13. a video data conversion module; 14. a device connection module; 2. a device to be tested; 3. and (4) a cloud server.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, the testing apparatus for simulating a camera sensor according to the embodiment includes a cloud server 3 and a testing terminal 1, the cloud server 3 is in communication connection with the testing terminal 1, the communication connection mode is 4G or 5G, and the testing terminal 1 includes a storage module 11, a main control module 12, a video data conversion module 13, and an equipment connection module 14.
Referring to fig. 1, the storage module 11 is configured with a plurality of storage libraries, a plurality of test videos are stored in the storage libraries, the test videos in different storage libraries are used for testing different types of devices under test 2, and the devices under test 2 are devices that need to perform camera video related tests, such as an intelligent driving area controller. The test video comprises an actual drive test video and a simulated composite video, the actual drive test video is obtained from an actual drive test scene, and the simulated composite video is obtained by algorithm simulated synthesis. The storage library comprises a drive test library and a synthesis library, the actual drive test video is stored in the drive test library, and the simulation synthesis video is stored in the synthesis library.
Referring to fig. 1, the video data conversion module 13 is configured to convert a format of a test video into a data format consistent with a format output by a camera, and the device connection module 14 is configured to connect with a plurality of devices to be tested 2 and send the test video after format conversion to the corresponding devices to be tested 2.
Referring to fig. 1, the main control module 12 obtains the type of each device under test 2 connected to the device connection module 14, and obtains a preset number of test videos from the corresponding drive test library and the corresponding synthesis library according to the type of the device under test 2, and sends the test videos to the video data conversion module 13.
For example, when the transmission number is 1, each device 2 to be tested that needs to be tested is connected to the device connection module 14, at this time, the main control module 12 obtains the type of the device 2 to be tested through the device connection module 14, then selects one test video from the drive test library and the synthesis library of the corresponding repository respectively according to the type of the device 2 to be tested, and transmits the test video to the video data conversion module 13, and the video data conversion module 13 converts the format of the test video into a data format consistent with the format output by the camera, for example, converts a signal in the PCIE/RGMII format into an MIPI CSI TX signal. The device connection module 14 sends the format-converted test video to each corresponding device under test 2.
The main control module 12 is configured with a comparison detection strategy, and the comparison detection strategy includes that when the main control module 12 acquires a plurality of devices to be tested 2 of the same type, the control device connection module 14 simultaneously sends the same test video to each device to be tested 2 of the same type.
Through the setting of comparing the detection strategy, when a plurality of equipment to be tested 2 of the same type are tested simultaneously, because the videos transmitted to the plurality of equipment to be tested 2 of the same type are the same, the equipment to be tested 2 which is unqualified in detection can be found out quickly through the simultaneous observation and comparison of the plurality of equipment to be tested 2. The standard equipment and other equipment to be tested 2 of the same type can be tested simultaneously, the test result of the equipment to be tested 2 is compared with the test result of the standard equipment in real time, and if the test results are different, the test is unqualified, so that the test efficiency can be improved.
Referring to fig. 2, a video update library is configured in the cloud server 3, the video update library is used for storing and importing new test videos, and a manager can import videos into the video update library of the cloud server 3 through a terminal such as a computer. The storage module 11 acquires the imported new test video in the video update library in real time and downloads and stores the new test video into each storage library.
Referring to fig. 2, a video update policy is set in the storage module 11, and the video update policy includes a data acquisition step, a data processing and comparing step, an edge video deleting step, and a downloading and updating step.
Referring to fig. 2, the data obtaining step includes obtaining the size of each test video in the current storage module 11 and the size of a new test video to be downloaded, and entering the data processing and comparing step.
Referring to fig. 2, the data processing and comparing step includes comparing the total size of each test video and the new test video to be downloaded with the preset storage space size of the storage module 11, and entering the edge video deleting step when the total size is larger than the preset storage space size; and entering a downloading and updating step when the total size is larger than the preset size of the storage space.
Referring to fig. 2, the edge video deleting step includes selecting a test video in which a download time interval between the test video in the storage module 11 and the current time exceeds a preset protection time interval, acquiring a sending time at which the test video is last sent to the video data conversion module 13, calculating a sending time interval from the sending time to the current time, if the test video is not sent, setting the sending time interval of the test video to infinity, sorting the test videos according to the sending time interval, deleting the test video from the maximum sending time interval until the total size of the remaining test videos and the new test video to be downloaded is smaller than the preset storage space size of the storage module 11, and if the total number of all test videos in a roadside library or a composite library where the test video to be deleted is located is smaller than a preset basic number threshold when deleting the test video, the test video to be deleted is not deleted, but the test video with smaller sending time interval is selected for deletion, and the downloading and updating steps are carried out.
Referring to fig. 2, the downloading and updating step includes downloading a new test video to be downloaded from the cloud server 3 into a corresponding storage library of the storage terminal.
For example, the protection time interval is set to 10 days, the threshold of the basic number is set to 1, the size of the new test video of the cloud server 3 is 50M, the size of the preset storage space is 10000M, and if the size of the test video in the current storage module 11 is 9900M, the total size of the test video in the current storage module 11 and the new test video to be downloaded is 9950M, which is smaller than the size of the preset storage space, at this time, the new test video is directly downloaded. If the size of the test video in the current storage module 11 is 9960M, at this time, the total size of the test video in the current storage module 11 and the new test video to be downloaded is 10010M, which is larger than the preset storage space size, the sending time of all the test videos with the downloading time 10 days ago, which are sent to the video data conversion module 13 at the last time, is obtained, the sending time interval from the sending time to the current time is calculated, and if a certain test video is never sent, the sending time interval of the test video is set to infinity. And then sorting according to the size of the time interval, wherein the storage space preferentially deletes the test video with the largest time interval until the size of the deleted test video exceeds 10M. When deleting the video, if only 1 test video is left in the roadside library or the synthesis library where the test video to be deleted is located, the test video is not deleted, but the subsequent test video with a smaller time interval is deleted. Therefore, the test video in the storage module 11 can be updated smoothly, and when the storage space is insufficient, the test video which is not frequently used and has low importance can be preferentially deleted.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (8)

1. The utility model provides a testing arrangement of simulation camera sensor which characterized in that: the device comprises a test terminal (1), wherein the test terminal (1) comprises a storage module (11), a main control module (12), a video data conversion module (13) and a device connection module (14);
the storage module (11) is provided with a plurality of storage libraries, a plurality of test videos are stored in the storage libraries, and the test videos in different storage libraries are used for testing different types of devices to be tested (2);
the video data conversion module (13) is used for converting the format of the test video into a data format consistent with the format output by the camera, and the equipment connection module (14) is used for connecting with the equipment to be tested (2) and sending the test video after format conversion to the corresponding equipment to be tested (2);
the main control module (12) acquires the type of each device to be tested (2) connected with the device connecting module (14), and acquires a video from the corresponding database according to the type of the device to be tested (2) and sends the video to the video data conversion module (13).
2. The device for testing an analog camera sensor according to claim 1, wherein: the main control module (12) is configured with a comparison detection strategy, and the comparison detection strategy comprises the steps that when the main control module (12) acquires a plurality of devices to be tested (2) of the same type, the device connection module (14) is controlled to simultaneously send the same test video to the devices to be tested (2) of the same type.
3. The device for testing an analog camera sensor according to claim 1, wherein: the test video comprises an actual drive test video and a simulated composite video, the actual drive test video is obtained from an actual drive test scene, and the simulated composite video is obtained by algorithm simulated synthesis.
4. The device for testing an analog camera sensor according to claim 3, wherein: the storage library comprises a drive test library and a synthesis library, actual drive test videos are stored in the drive test library, simulation synthesis videos are stored in the synthesis library, and the main control module (12) is used for sending the test videos to the video data conversion module (13) according to the preset sending quantity acquired from the drive test library and the synthesis library corresponding to each device to be tested (2).
5. The device for testing an analog camera sensor according to claim 4, wherein: the testing device comprises a cloud server (3), wherein the cloud server (3) is in communication connection with a testing terminal (1), a video updating library is configured in the cloud server (3), the video updating library is used for storing and importing new testing videos, and a storage module (11) acquires the imported new testing videos in the video updating library in real time and downloads and stores the imported new testing videos into the storage libraries.
6. The device for testing an analog camera sensor according to claim 5, wherein: a video updating strategy is arranged in the storage module (11), and the video updating strategy comprises a data acquisition step, a data processing and comparing step, an edge video deleting step and a downloading and updating step;
the data acquisition step comprises the steps of acquiring the size of each test video in the current storage module (11) and the size of a new test video to be downloaded, and entering a data processing comparison step;
the data processing and comparing step comprises the steps of comparing the total size of each test video and the new test video to be downloaded with the preset storage space size of the storage module (11), and entering an edge video deleting step when the total size is larger than the preset storage space size; when the total size is larger than the preset storage space size, entering a downloading and updating step;
the edge video deleting step comprises the steps of selecting a test video with the download time interval between the test video download time in the storage module (11) and the current time exceeding a preset protection time interval, obtaining the sending time of the test video which is sent to the video data conversion module (13) for the last time, calculating the sending time interval from the sending time to the current time, if the test video is not sent, setting the sending time interval of the test video to be infinite, sequencing the test videos according to the sending time interval, deleting the test video with the maximum sending time interval until the total size of the rest test videos and the new test video to be downloaded is smaller than the preset storage space size of the storage module (11), and entering the downloading and updating step;
and the downloading and updating step comprises the step of downloading the new test video to be downloaded from the cloud server (3) to the corresponding storage library of the storage terminal.
7. The device for testing an analog camera sensor according to claim 6, wherein: and deleting the edge video, wherein when the test video is deleted, if the total number of all the test videos in the road side library or the synthesis library where the test video to be deleted is located is less than or equal to a preset basic number threshold value, the test video to be deleted is not deleted.
8. The device for testing an analog camera sensor according to claim 1, wherein: the transmission number is consistent with the base number threshold.
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